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Abstract:

This invention discloses a rotating mechanism and an electronic device.
The rotating mechanism includes a base assembly, a rotator assembly, and
a riveting gasket. The base assembly is riveted to the riveting gasket;
the rotator assembly is sheathed to the base assembly, the riveting
gasket restricts the rotator assembly onto the base assembly, and the
rotator assembly can rotate against the base assembly around an axial
direction; and the rotator assembly includes at least one elastomer, a
concave-convex structure on the base assembly engages with a
concave-convex structure on the elastomer to fix the rotator assembly and
the base assembly. The total axial thickness of the rotating mechanism in
this invention is very small, the outer diameter of the rotating
mechanism is also very small, and therefore, the rotating mechanism fits
in well with an ultra-thin electronic device.

Claims:

1. A rotating mechanism comprising: a base assembly; a rotator assembly;
and a riveting gasket, wherein the base assembly is riveted to the
riveting gasket, the rotator assembly is sheathed to the base assembly,
the riveting gasket restricts the rotator assembly onto the base
assembly, and the rotator assembly is free to rotate on the base assembly
around an axis of the base assembly, and wherein the rotator assembly
includes at least one elastomer, and a concave-convex structure on the
base assembly is configured to engage a concave-convex structure of the
elastomer to fix the rotator assembly and the base assembly.

2. The rotating mechanism according to claim 1, wherein: the base
assembly comprises a base and a sleeve; and the sleeve is riveted or
integrated onto the base, the sleeve and the base are hollow, a hollow
part of the sleeve is connected to a hollow part of the base, and the
rotator assembly is sheathed to the sleeve.

3. The rotating mechanism according to claim 2, wherein: the rotator
assembly further comprises a support and a rotator; and the support and
the rotator are sheathed to the sleeve, the at least one elastomer is set
on the support, and a concave-convex structure of the sleeve engages with
the concave-convex structure on of the elastomer.

4. The rotating mechanism according to claim 3, wherein: the rotator
assembly further comprises a roller; and the roller contacts the support
or the rotator and the base, and the roller props up between the support
and the base, or between the rotator and the base.

5. The rotating mechanism according to claim 1, wherein: the base
assembly comprises a base and a sleeve; and the sleeve passes through a
through-hole in the base, the sleeve is hollow, an area surrounded by an
edge of a sleeve end that contacts the base in the sleeve is greater than
an area of the through-hole in the base, the rotator assembly is sheathed
to the sleeve, and the rotator assembly is clasped with the sleeve so
that the rotator assembly keeps static against the sleeve when rotating
around a central axis of the sleeve.

6. The rotating mechanism according to claim 2, wherein: the rotator
assembly further comprises a rotator; and the elastomer comprises a
support part and an elastic part, a through-hole is formed in the support
part, the elastomer and the rotator are sheathed to the sleeve, the
elastic part contacts the rotator, and a concave-convex structure on the
base engages with a concave-convex structure on the support part.

7. The rotating mechanism according to claim 5, wherein: the rotator
assembly further comprises a rotator; and the elastomer comprises a
support part and an elastic part, a through-hole is formed in the support
part, the elastomer and the rotator are sheathed to the sleeve, the
elastic part contacts the rotator, and a concave-convex structure on the
base engages with a concave-convex structure on the support part.

8. The rotating mechanism according to claim 1, wherein the
concave-convex structure of the base part comprises: at least one concave
hole that is formed in the base assembly, and at least one convex point
is formed on the elastomer.

9. The rotating mechanism according to claim 1, wherein: at least one
machine hole is formed in the base assembly, and at least one machine
hole is formed in the rotator assembly.

10. The rotating mechanism according claim 1, wherein: the base assembly,
the rotator assembly, and the riveting gasket have a circular or
cylindrical shape.

11. An electronic device, wherein: the electronic device comprises a
rotating mechanism, the rotating mechanism comprising: a base assembly; a
rotator assembly; and a riveting gasket, wherein the base assembly is
riveted to the riveting gasket, the rotator assembly is sheathed to the
base assembly, the riveting gasket restricts the rotator assembly onto
the base assembly, and the rotator assembly is free to rotate on the base
assembly around an axis of the base assembly, and wherein the rotator
assembly includes at least one elastomer, and a concave-convex structure
on the base assembly is configured to engage a concave-convex structure
on the elastomer to fix the rotator assembly and the base assembly a
body; and a data interface, wherein the data interface is connected to
the rotator assembly through a machine hole, and the body of the
electronic device is connected to the base assembly through a machine
hole; the body of the electronic device comprises a shell and a circuit
board, wherein the circuit board is set inside an interior space of the
shell; the data interface is electrically connected to the circuit board,
and the circuit board transmits data through the data interface; and the
data interface is free to rotate against the body of the electronic
device through the rotating mechanism.

12. The electronic device according to claim 11, wherein: the electronic
device is a data card; a communication function module is set on the
circuit board, and is configured to access a wireless communication
network; and the data interface is a Universal Serial Bus (USB)
interface.

13. An electronic device, wherein: the electronic device comprises a
rotating mechanism, the rotating mechanism comprising: a base assembly; a
rotator assembly; and a riveting gasket, wherein the base assembly is
riveted to the riveting gasket, the rotator assembly is sheathed to the
base assembly, the riveting gasket restricts the rotator assembly onto
the base assembly, and the rotator assembly is free to rotate on the base
assembly around an axis; of the base assembly, and wherein the rotator
assembly includes at least one elastomer, and a concave-convex structure
on the base assembly is configured to engage a concave-convex structure
on the elastomer to fix the rotator assembly and the base assembly a
body; and a data interface, wherein the data interface is connected to
the base assembly through a machine hole, and the body of the electronic
device is connected to the rotator assembly through a machine hole; the
body of the electronic device comprises a shell and a circuit board,
wherein the circuit board is set inside an interior space of the shell;
the data interface is electrically connected to the circuit board, and
the circuit board transmits data through the data interface; and the data
interface can is free to rotate against the body of the electronic device
through the rotating mechanism.

14. The electronic device according to claim 12, wherein: the electronic
device is a data card; a communication function module is set on the
circuit board, and is configured to access a wireless communication
network; and the data interface is a Universal Serial Bus (USB)
interface.

15. The rotating mechanism according to claim 1, wherein the
concave-convex structure comprises at least one convex point is formed on
the base assembly, and at least one concave hole is formed in the
elastomer.

16. The rotating mechanism according to claim 1, wherein the
concave-convex structure comprises at least one convex point and at least
one concave hole are formed on the base assembly, and at least one
concave hole and at least one convex point are formed on the elastomer.

Description:

CROSS-REFERENCE TO RELATED APPLICATION

[0001] This application claims priority to Chinese Patent Application No.
201020247323.8, filed on Jul. 1, 2010, which is hereby incorporated by
reference in its entirety.

FIELD OF THE INVENTION

[0002] This invention relates to mechanical technologies, and in
particular, to a rotating mechanism and an electronic device.

BACKGROUND OF THE INVENTION

[0003] With the development of electronic technologies, people expect
electronic products to be smaller and thinner, which require very thin
fittings of the electronic products. For example, the thinnest hinge of a
data card available now is 2 mm only.

[0004] To connect an ultra-thin data card to an electronic product
rotationally, a rotating mechanism that fits in with the data card is
required. However, the rotating mechanism of the electronic products in
the prior art is complicated and oversized, and cannot fit in with the
ultra-thin data card.

SUMMARY OF THE INVENTION

[0005] This invention provides a rotating mechanism and an electronic
device, where the rotating mechanism fits in well with an ultra-thin
electronic device.

[0006] A rotating mechanism provided in this invention includes a base
assembly, a rotator assembly, and a riveting gasket.

[0007] The base assembly is riveted to the riveting gasket; the rotator
assembly is sheathed to the base assembly, the riveting gasket restricts
the rotator assembly onto the base assembly, and the rotator assembly can
rotate against the base assembly around an axial direction; and

[0008] The rotator assembly includes at least one elastomer, a
concave-convex structure on the base assembly engages with a
concave-convex structure on the elastomer to fix the rotator assembly and
the base assembly.

[0009] Further, the base assembly includes a base and a sleeve; and the
sleeve is riveted or integrated onto the base, the sleeve and the base
are hollow, the hollow part of the sleeve is connected to the hollow part
of the base, and the rotator assembly is sheathed to the sleeve.

[0010] The rotator assembly may include a support and a rotator; the
support and the rotator are sheathed to the sleeve, the at least one
elastomer is set on the support, and a concave-convex structure on the
sleeve engages with a concave-convex structure on the elastomer.

[0011] The rotator assembly further includes a roller; the roller reaches
and contacts the support or rotator, the roller also reaches and contacts
the base, and the roller props up between the support and the base, or
between the rotator and the base.

[0012] Further, the base assembly includes a base and a sleeve; the sleeve
gets through a round through-hole in the base, the sleeve is hollow, the
area surrounded by an edge of a sleeve end that contacts the base in the
sleeve is greater than the area of the round through-hole in the base,
the rotator assembly is sheathed to the sleeve, and the rotator assembly
is clasped with the sleeve so that the rotator assembly keeps static
against the sleeve when rotating around a central axis of the sleeve.

[0013] The rotator assembly may also include a rotator; the elastomer
includes a support part and an elastic part, a through-hole is set in the
support part, the elastomer and the rotator are sheathed to the sleeve,
the elastic part reaches and contacts the rotator, and a concave-convex
structure on the base engages with a concave-convex structure on the
support part.

[0014] The concave-convex structure may take on these features: At least
one concave hole is set in the base assembly, and at least one convex
point is set on the elastomer accordingly; or at least one convex point
is set on the base assembly, and at least one concave hole is set in the
elastomer accordingly; or at least one convex point and at least one
concave hole are set on the base assembly, and at least one concave hole
and at least one convex point are set on the elastomer accordingly.

[0015] At least one machine hole is set in the base assembly, and at least
one machine hole is set in the rotator assembly.

[0016] The base assembly, the rotator assembly, and the riveting gasket
take on the shape of a circular plate or a cylinder.

[0017] An electronic device provided in this invention includes the
foregoing rotating mechanism, a body of the electronic device, and a data
interface.

[0018] The data interface is connected to the rotator assembly through the
machine hole, and the body of the electronic device is connected to the
base assembly through the machine hole; or the data interface is
connected to the base assembly through the machine hole, and the body of
the electronic device is connected to the rotator assembly through the
machine hole; the body of the electronic device includes a shell and a
circuit board, where the circuit board is set inside the space enclosed
by the shell; the data interface is electrically connected to the circuit
board, and the circuit board transmits data through the data interface;
and the data interface can rotate against the body of the electronic
device through the rotating mechanism.

[0019] Further, the electronic device is a data card; a communication
function module is set on the circuit board, and is configured to access
a wireless communication network; and the data interface is a Universal
Serial Bus (USB) interface.

[0020] In the rotating mechanism and the electronic device disclosed
herein, total axial thickness of the rotating mechanism is very small,
the outer diameter of the rotating mechanism is very small, and
therefore, the rotating mechanism fits in well with an ultra-thin
electronic device.

BRIEF DESCRIPTION OF THE DRAWINGS

[0021] FIG. 1 is a disassembled structure diagram of a rotating mechanism
according to a first embodiment of the invention;

[0022]FIG. 2 is another disassembled structure diagram of a rotating
mechanism according to the first embodiment of the invention;

[0023]FIG. 3a shows an assembled rotating mechanism according to the
first embodiment of the invention;

[0024]FIG. 3b is a sectional structure diagram o f an assembled rotating
mechanism according to the first embodiment of the invention;

[0025]FIG. 4a is a disassembled structure diagram of a rotating mechanism
according to a second embodiment of the invention;

[0026]FIG. 4b is a structure diagram of an elastomer in the rotating
mechanism according to the second embodiment of the invention;

[0027]FIG. 5 is a front structure diagram of an electronic device
according to a third embodiment of the invention;

[0028]FIG. 6 is a back structure diagram of an electronic device
according to the third embodiment of the invention;

[0029]FIG. 7a is a disassembled structure diagram of another rotating
mechanism according to the second embodiment of the invention;

[0030]FIG. 7b is a main topology of a sleeve in another rotating
mechanism according to the second embodiment of the invention;

[0031] FIG. 7c is a left view of a sleeve in another rotating mechanism
according to the second embodiment of the invention; and

[0032]FIG. 7d is a top view of a sleeve in another rotating mechanism
according to the second embodiment of the invention.

DETAILED DESCRIPTION OF THE EMBODIMENTS

[0033] The technical solution of the invention is expounded below with
reference to accompanying drawings and embodiments.

[0034] A rotating mechanism provided in this invention includes a base
assembly, a rotator assembly, and a riveting gasket. The base assembly is
riveted to the riveting gasket, the rotator assembly is sheathed to the
base assembly, the riveting gasket restricts the rotator assembly onto
the base assembly, and the rotator assembly can rotate against the base
assembly around an axial direction (namely, around a direction vertical
to the base assembly and the rotator assembly). The rotator assembly
includes at least one elastomer, a concave-convex structure on the base
assembly engages with a concave-convex structure on the elastomer to fix
the rotator assembly and the base assembly.

[0035] In the rotating mechanism provided in this invention, the rotator
assembly can rotate against the base assembly. The rotator assembly is
sheathed to the base assembly, which saves axial space. That is, the
rotating mechanism is very thin, and fits in well with ultra-thin data
cards.

[0036] FIG. 1 is a disassembled structure diagram of a rotating mechanism
according to a first embodiment of the invention, and FIG. 2 is another
disassembled structure diagram of a rotating mechanism according to the
first embodiment of the invention.

[0037] As shown in FIG. 1 and FIG. 2, the rotating mechanism includes: a
base assembly 10, a rotator assembly 11, and a riveting gasket 12. The
base assembly 10 is riveted to the riveting gasket 12, and the rotator
assembly 11 is sheathed to the base assembly 10. The riveting gasket 12
restricts the rotator assembly 11 onto the base assembly 10, and the
rotator assembly 11 rotates against the base assembly 10 around an axial
direction. As shown in FIG. 1, after the rotator assembly 11 is sheathed
to the base assembly 10, the riveting gasket 12 is riveted to the base
assembly 10. In this way, the rotator assembly 11 is restricted between
the riveting gasket 12 and the base assembly 10 so that the rotator
assembly 11 does not leave the base assembly 10 when the rotator assembly
11 rotates against the base assembly 10.

[0038] The base assembly 10, the rotator assembly 11, and the riveting
gasket 12 take on the shape of a circular plate or a cylinder, namely,
their cross sections are circular. Nevertheless, they may take on other
shapes, for example, cylinder or plate whose cross section is a regular
polygon, or cylinder or plate whose cross section is an irregular
polygon, or cylinder or plate whose cross section is an ellipse.

[0039] Further, the base assembly 10 includes a base 13 and a sleeve 14.
The sleeve 14 can be riveted to the base 13, or integrated into the base
13. The sleeve 14 and the base 13 may be hollow, the hollow part of the
sleeve 14 is connected to the hollow part of the base 13 to form a
central hole, and the circuit connection cable can get through the
central hole. The rotator assembly 11 may also be hollow, and the sleeve
14 gets through the hollow part of the rotator assembly 11 to let the
rotator assembly 11 be sheathed to the sleeve 14.

[0040] In this embodiment, the rotator assembly 11 includes at least one
elastomer 17, a concave-convex structure on the base assembly 10 engages
with a concave-convex structure on the elastomer 17 to fix the rotator
assembly 11 and the base assembly 10. Specifically, at least one concave
hole is set in the base assembly 10, and at least one convex point is set
on the elastomer 17 accordingly. Alternatively, at least one convex point
is set on the base assembly 10, and at least one concave hole is set in
the elastomer 17 accordingly; or at least one convex point and at least
one concave hole are set on the base assembly 10, and at least one
concave hole and at least one convex point are set on the elastomer 17
accordingly.

[0041] Specifically, the rotator assembly 11 may further include a support
15 and a rotator 16. The support 15 and the rotator 16 are sheathed to
the sleeve 14. FIG. 2 shows how the support 15 is sheathed to the sleeve
14. The elastomer 17 is fixed onto the support 15.

[0042] At least one roller is set between the support 15 and the rotator
16, and the roller may be a ball 18. As shown in FIG. 1, the support 15
may be a plate structure, the ball 18 is located in the plate structure,
and the ball 18 contacts the base 13 so that the rotator assembly rotates
against the base assembly more flexibly.

[0043] In this embodiment, the concave-convex structure on the sleeve 14
fits in with the concave-convex structure on the elastomer 17, as
described below:

[0044] A concave slot 19 is set around the outer circumference of the
sleeve 14, and at least one concave hole (not illustrated in the figure)
is set in the concave slot 19. The at least one concave hole may be
distributed evenly on a circle of the concave slot. Accordingly, at least
one convex point (not illustrated in the figure) is set on the at least
one elastomer 17 on the support 15, where the at least one convex point
engages with the concave hole in the concave slot 19. The number of
convex points is the same as the number of concave holes, and the convex
points are also distributed on a circle evenly. As shown in FIG. 2, after
the support 15 is sheathed to the sleeve 14, the position of the convex
point on the elastomer 17 corresponds to the position of the concave slot
19 exactly. Therefore, in the rotation process, the concave hole in the
concave slot 19 engages with the convex point on the elastomer 17 to
generate the angle of rotation level and the sense of handling. For
example, if the number of concave holes is 4, which is equal to the
number of convex points, the action of rotating for every 90°
reaches a new level of rotation. The elastomer 17 is elastic to some
extent. When the concave holes engage with the convex points, the
elastomer 17 presses the convex points on the elastomer into the concave
holes. In this way, the sleeve 14 is fixed onto the support 15
relatively, and the rotator assembly is fixed onto the base assembly.
When inverse torque is applied to the rotator assembly and the base
assembly, the elastomer 17 may generate elastic deformation, and the
convex points can come out of the concave holes under a proper torque
force so that the rotator assembly rotates against the base assembly.
Because the rotation level of the rotation mechanism can be set flexibly
as required, the rotation may stop every time when the rotation reaches a
specific angle, which increases the flexibility and convenience of using
the device.

[0045] The foregoing concave-convex structure is only an example of this
invention. Alternatively, at least one convex point is set on the concave
slot 19, and at least one concave hole that engages with the convex point
is set in the at least one elastomer 17; or at least one convex point and
at least one concave hole are set on the concave slot 19, and at least
one concave hole that engages with the convex point and at least one
convex point that engages with the concave hole are set on the at least
one elastomer 17.

[0046] In this embodiment, at least one machine hole 20 is set in the base
13, and at least one machine hole 21 is set in the rotator 16. The
machine holes are designed to fix the rotating mechanism onto the
corresponding electronic device or component. The machine holes may be
through-holes or blind holes set in the base 13 and the rotator 16.

[0047] The assembly process of the rotating mechanism shown in FIG. 1 is:
Rivet the sleeve 14 to the base 13 to form the base assembly 10; fasten
the at least one elastomer 17 to the corresponding position of the
support 15, sheathe the support 15 to the sleeve 14, and let the convex
points of the elastomer 17 of the support 15 be embedded into the concave
slot 19 of the sleeve 14 exactly; load the at least one ball 18 onto the
support 15, and sheathe the rotator 16 to the sleeve 14; install the
riveting gasket 12, and rivet the riveting gasket 12, the rotator 16, the
support 15, and the base assembly 10 together. Besides, when the rotator
assembly 11 rotates against the base assembly 10, the rotator 16 keeps
fixed to the support 15 relatively. For example, the rotator 16 may be
fastened to the support 15 through weld, rivet, or bolts. Alternatively,
a fixing slot (not illustrated in the figure) may be set on the rotator
16. The fixing slot corresponds to the edge 151 of the support 15, and
the edge 151 of the support 15 is embedded into the fixing slot of the
rotator 16 so that the rotator 16 is fastened to the support 15.

[0048]FIG. 3a is a structure diagram of an assembled rotating mechanism
according to the first embodiment of the invention, and FIG. 3b is a
sectional structure diagram of an assembled rotating mechanism according
to the first embodiment of the invention. Specifically, FIG. 3b is an
axial sectional diagram of the rotating mechanism shown in FIG. 3a. As
shown in FIG. 3a and FIG. 3b, the support 15 may be a plate structure, a
through-hole may be set in the support 15, the ball 18 is located in the
through-hole, and the ball 18 contacts both the base 13 and the rotator
16. In this way, when the rotator assembly rotates against the base
assembly, the ball 18 props up between the base 13 and the rotator 16,
and the rotation of the rotator assembly against the base assembly is
more flexible. The diameter of the ball 18 may be 0.5-0.8 mm, and the
total axial thickness of the rotating mechanism is 2 mm or smaller, and
the outer diameter of the rotating mechanism is 10 mm or smaller, and
therefore, the rotating mechanism fits in well with an ultra-thin
electronic device. The rotating mechanism shown in FIG. 3a has a central
hole 30, and a cable may get through the central hole. For example, the
USB connection cable may get through the central hole 30 of the rotating
mechanism to get connected to a Printed Circuit Board (PCB) at the
bottom. It should be noted that the holes in the support 15 may have a
blind hole or recess. In this case, the ball 18 is set in the blind hole
or recess, the ball 18 reaches and contacts the support 15 and the base
13. Therefore, when the rotator assembly rotates against the base
assembly, the roller 18 props up between the base 13 and the support 15.
Nevertheless, the ball 18 is only an embodiment of the roller. In
practice, any variation of the roller is appropriate so long as the roll
of the roller relieves relative resistance between the rotator assembly
and the base assembly and improves flexibility of relative rotation
between the rotator assembly and the base assembly. For example, the
roller may be a rolling rod. The rolling rod may be embedded into the
support 15 or rotator 16 through an axle or by other means, and the
rolling rod contacts the base 13. Therefore, when the rotator assembly
rotates against the base assembly, the rolling rod props up between the
base 13 and the support 15 or rotator 16.

[0049]FIG. 4a is a disassembled structure diagram of a rotating mechanism
according to a second embodiment of the invention. As shown in FIG. 4a,
the rotating mechanism includes: a base assembly 40, a rotator assembly
41, and a riveting gasket 42. The base assembly 40 is riveted to the
riveting gasket 42, and the rotator assembly 41 is sheathed to the base
assembly 40. The riveting gasket 42 restricts the rotator assembly 41
onto the base assembly 10, and the rotator assembly 41 rotates against
the base assembly 40 around an axial direction. As shown in FIG. 4a,
after the rotator assembly 41 is sheathed to the base assembly 40, the
riveting gasket 42 is riveted to the base assembly 40. In this way, the
rotator assembly 41 is restricted between the riveting gasket 42 and the
base assembly 40, and the rotator assembly 41 does not leave the base
assembly 40 when the rotator assembly 41 rotates against the base
assembly 40.

[0050] The base assembly 40, the rotator assembly 41, and the riveting
gasket 42 take on the shape of a circular plate or a cylinder, namely,
their cross sections are circular. Nevertheless, they may take on other
shapes, for example, cylinder or plate whose cross section is a regular
polygon, or cylinder or plate whose cross section is an irregular
polygon, or cylinder or plate whose cross section is an ellipse.

[0051] Further, the base assembly 40 includes a base 43 and a sleeve 44.
The sleeve 44 may be riveted to the base 43, or integrated into the base
43. The sleeve 44 and the base 43 may be hollow, the hollow part of the
sleeve 44 is connected to the hollow part of the base 43to form a central
hole, and the circuit connection cable can get through the central hole.
The rotator assembly 41 is sheathed to the sleeve 44. That is, the
rotator assembly 41 is hollow, and the sleeve 44 gets through the hollow
part of the rotator assembly 41.

[0052] In this embodiment, the rotator assembly 41 includes an elastomer
47, a concave-convex structure on the base assembly 40 engages with a
concave-convex structure on the elastomer 47 to fix the rotator assembly
41 and the base assembly 40. Specifically, at least one concave hole is
set in the base assembly 40, and at least one convex point is set on the
elastomer 47 accordingly. Alternatively, at least one convex point is set
on the base assembly 40, and at least one concave hole is set in the
elastomer 47 accordingly; or at least one convex point and at least one
concave hole are set on the base assembly 40, and at least one concave
hole and at least one convex point are set on the elastomer 47
accordingly.

[0053] Specifically, the rotator assembly 41 may further include a rotator
46. As shown in FIG. 4a, the elastomer 47 and the rotator 46 are sheathed
to the sleeve 44. One plane of the elastomer 47 contacts the base 43, and
the other plane of the elastomer 47 contacts the rotator 46. In this way,
the elastomer 47 can reach and contact both the rotator 46 and the base
43.

[0054]FIG. 4b is a structure diagram of an elastomer in the rotating
mechanism according to the second embodiment of the invention. As shown
in FIG. 4b, the elastomer 47 is a component composed of one support part
471 and multiple elastic parts 472. The angle between the elastic part
472 and the plane of the support part 471 is an obtuse angle, and the
elastic parts 472 are designed to keep an axial distance between the
support 471 and the rotator 46. The elastic part 472 may be an elastic
metal plate. While in service, more than two elastic parts 472 are set on
the support part 471. One plane of the support part 471 contacts the base
43, and a concave-convex structure is set on the contact plane of the
support part 471 which contacts the base 43. The elastic part 472
contacts the rotator 46. Because the elastic part 472 makes the elastomer
47 elastic, the axial distance between the elastomer 47 and the rotator
46 varies with the elasticity of the elastomer 47.

[0055] In this embodiment, the concave-convex structure on the base 43
fits in with the concave-convex structure on the elastomer 47, as
described below:

[0056] At least one convex point 48 is set on the plane of the elastomer
47 against the base 43 (namely, the contact plane of the support part 471
of the elastomer 47 which contacts the base 43), and at least one concave
hole 49 that engages with the concave point 48 is set in the plane of the
base 43 against the elastomer 47. Specifically, the number of convex
points 48 is the same as the number of concave holes 49, and the convex
points and the concave holes 49 may be distributed on a circle evenly. A
through-hole 473 exists in the middle of the support part 471 of the
elastomer 47. The elastomer 47 is sheathed to the sleeve 44 through the
through-hole 473. Afterward, in the rotation process, the concave hole 49
engages with the convex point 48 to generate the angle of the rotation
level and the sense of handling. For example, if the number of concave
holes 49 is 4, which is equal to the number of convex points 48, the
action of rotating for every 90° reaches a new level of rotation.
The elastomer 47 is elastic to some extent. When the concave holes 49
engage with the convex points 48, a proper force may be applied to rotate
the convex points 48 out of the concave holes 49. Specifically, when the
concave holes 49 engages with the convex points 48, the elastic part 472
of the elastomer 47 reaches and contacts the rotator 46, and the
elastomer 47 presses the convex points on the support part 471 into the
concave holes of the base 43. In this way, the sleeve 44 is fixed onto
the elastomer 47 relatively, and the rotator assembly is fixed onto the
base assembly. When inverse torque is applied to the rotator assembly and
the base assembly, the elastomer 47 may generate elastic deformation, and
the convex points 48 can come out of the concave holes 49 under a proper
torque force so that the rotator assembly rotates against the base
assembly.

[0057] The foregoing concave-convex structure is only an example of this
invention. Alternatively, at least one convex point is set on the base
43, and at least one concave hole that engages with the convex point is
set in the elastomer 47; or at least one convex point and at least one
concave hole are set on the base 43, and at least one concave hole that
engages with the convex point and at least one convex point that engages
with the concave hole are set on the elastomer 47. Besides, the support
part 471 may be a circular rod or plate shown in FIG. 4a and FIG. 4b; or,
the support part 471 may take on other shapes, for example, cylinder or
plate whose cross section is a regular polygon, or cylinder or plate
whose cross section is an irregular polygon, or cylinder or plate whose
cross section is an ellipse. All such shapes are appropriate so long as a
through-hole 473 is set in the middle of the rod or plate of such shapes.

[0058] In this embodiment, at least one machine hole 50 is set in the base
43, and at least one machine hole 51 is set in the rotator 46. The
machine holes are designed to fix the rotating mechanism onto the
corresponding electronic device or component. The machine holes may be
through-holes or blind holes set in the base 43 and the rotator 46.

[0059] The assembly process of the rotating mechanism shown in FIG. 4a is:
Rivet the sleeve 44 to the base 43 to form a base assembly 40; sheathe
the elastomer 47 to the sleeve 44, and the elastomer 47 contacts the base
43; sheathe the rotator 46 to the sleeve 44; install the riveting gasket
42, and rivet the riveting gasket 42, rotator 46, elastomer 47, and base
assembly 40 together. Besides, when the rotator assembly 41 rotates
against the base assembly 40, the rotator 46 keeps fixed to the elastomer
47 relatively. For example, the rotator 46 may be fastened to the
elastomer 47 through weld, rivet, or bolts. Alternatively, a fixing slot
(not illustrated in the figure) may be set on the rotator 46. The fixing
slot corresponds to the elastic part 472 of the elastomer 47, and the
elastic part 472 of the elastomer 47 is embedded into the fixing slot of
the rotator 46 so that the rotator 46 is fastened to the elastomer 47.

[0060] The rotator 46 may also be relatively fixed to the elastomer 47 by
other means. See FIG. 7a to FIG. 7d. FIG. 7a is a disassembled structure
diagram of another rotating mechanism according to the second embodiment
of the invention; FIG. 7b is a main topology of a sleeve in another
rotating mechanism according to the second embodiment of the invention;
FIG. 7c is a left view of a sleeve in another rotating mechanism
according to the second embodiment of the invention; and FIG. 7d is a top
view of a sleeve in another rotating mechanism according to the second
embodiment of the invention. The sleeve 44 may not be fixed to the base
43, and the sleeve 44 includes a restricting part 441, a cylindrical part
442, and a riveting part 443. The cylindrical part 442 gets through the
circular through-hole in the middle of the base 43; the elastomer 47 and
the rotator 46 are sheathed to the cylindrical part 442, and the riveting
gasket 42 is riveted to the riveting part 443. Because an area of the
restricting part 441 is greater than an area of the circular through-hole
of the base 43 (the restricting part 441 is located on a side of the
sleeve 44 that contacts the base 43. The area enclosed by the edge of the
restricting part 441 is greater than the area of the circular
through-hole in the middle of the base 43). Therefore, the restricting
part 441 and the riveting part 443 restrict the base 43, elastomer 47,
and rotator 46 together. A cutting plane 444 is set on the sleeve 44.
That is, one or more columns whose bottom is a bow shape are cut along
the axis of the cylindrical part 442, and therefore, the cross section of
the cylindrical part 442 is an incomplete circle. The elastomer 47 and
the through-hole in the middle of the rotator 46 are set according to the
cross section of the cylindrical part 442, and therefore, the elastomer
47 and the through-hole in the middle of the rotator 46 also form an
incomplete circle. In this way, the elastomer 47, the rotator 46, and the
cylindrical part 442 are clasped to each other; when the rotator assembly
41 rotates against the base assembly 40, the rotator 46 keeps fixed to
the elastomer 47 relatively, and the base 43 can rotate around the sleeve
44.

[0061] The total axial thickness of the rotating mechanism in this
embodiment is 2 mm or smaller, and the outer diameter of the rotating
mechanism is 10 mm or smaller, and therefore, the rotating mechanism fits
in well with an ultra-thin electronic device. The rotating mechanism has
a central hole, and a cable may get through the central hole. For
example, a USB connection cable may get through the central hole of the
rotating mechanism to get connected to a Printed Circuit Board (PCB) at
the bottom. Because the rotation level of the rotation mechanism can be
set flexibly as required, the rotation may stop every time when the
rotation reaches a specific angle, which increases the flexibility and
convenience.

[0062]FIG. 5 is a front structure diagram of an electronic device
according to a third embodiment of the invention, and FIG. 6 is a back
structure diagram of an electronic device according to the third
embodiment of the invention. As shown in FIG. 5 and FIG. 6, the
electronic device includes a body 60 of the electronic device, a data
interface 61, and a rotating mechanism 62. The rotating mechanism 62 may
be any rotating mechanism provided in the first embodiment and the second
embodiment above.

[0063] In this embodiment, the data interface 61 is connected to the
rotator assembly, and the body 60 of the electronic device is connected
to the base assembly. Specifically, through a machine hole in the rotator
assembly, a machine screw 63 fastens the rotator assembly to the data
interface 61, as shown in FIG. 5; through a machine hole in the base
assembly, a machine screw 64 fastens the base assembly to the body 60 of
the electronic device, as shown in FIG. 6. When the data interface 61 is
flipped, the rotator assembly rotates axially, and the data interface is
connected to the body of the electronic device in a rotatable mode.

[0064] The electronic device shown in FIG. 5 and FIG. 6 is an example of
electronic devices provided in this invention. However, being not limited
to the example, the data interface 61 in this invention may be connected
to the base assembly through a machine hole, and the body 60 of the
electronic device may be connected to the rotator assembly through a
machine hole.

[0065] The body 60 of the electronic device includes a shell and a circuit
board. The circuit board is set inside the space enclosed by the shell.
The data interface 61 is electrically connected to the circuit board, and
the circuit board transmits data through the data interface 61. The data
interface 61 can rotate against the body 60 of the electronic device
through the rotating mechanism.

[0066] Besides, the electronic device may be a data card (a wireless
modem), a wireless network adaptor, and a USB disk. The foregoing data
interface may be a USB interface. This embodiment is applicable to
various devices with a USB interface, especially, to a wireless
communication device with a USB interface. For example, the USB interface
device provided in this invention is applicable to various terminal
devices. The terminal devices may be fixed terminals or mobile terminals
with a USB interface, for example, a data card or a mobile phone with a
USB interface. Besides, the device is also applicable to various mobile
devices and portable devices with a USB interface, for example, an MP3
player and an MP4 player with a USB interface, a PlayStation Portable
(PSP), a digital camera, and a USB disk.

[0067] When the foregoing electronic device is a data card (a wireless
modem), the circuit board includes a communication function module. The
communication function module is set on the circuit board, and is
configured to communicate with the wireless network. In this way, the
wireless modem transmits data through the wireless network. Specifically,
assuming that the data interface 61 is a USB interface, the USB interface
in the wireless modem is connected to the USB receptacle in a device such
as a computer. The device such as a computer communicates and exchanges
data with the wireless network through the communication function module
on the circuit board.

[0068] Finally, it should be noted that the above embodiments are merely
provided for describing the technical solutions of the invention, but not
intended to limit the invention. It is apparent that persons skilled in
the art can make various modifications and variations to the invention
without departing from the spirit and scope of the invention. The
invention is intended to cover the modifications and variations provided
that they fall in the scope of protection defined by the appended claims
or their equivalents.